Ohahles ii



(No Model.)

0. H. HAUSCHEL.

MUSIC SCALE AND CHORD INDICATOR.

Patented Apr. 4,1882.-

BY W

ATTORNJ UNITED STATES PATENT OFFICE.

CHARLES H. HAUSOHEL, OF NEW YORK, N. Y.

MUSIC SCALE AND CHORD INDICATOR.

SPECIFICATION forming part of Letters Patent No. 255,979, dated April 4,1882.

Application filed September-16,1881.

To all whom tinny concern Be it known that I, GHAnLEsH. HAUSOHEL, of thecity, county, and State of New York, haveiuvented certain new and usefulImprovements in Scale and Chord Indicators, of which the follou ing is aspecification.

The object of this invention is to furnish to amateurs, advanced pupils,leaders ol" quartettes and singing societies, vocalists, and others animproved scale and chord indicator, by which, in addition to the audiblesounding of the trichord of any key the same trichord is visiblyrepresented in characters; furthermore, the entire scale, with itssharps and tlats, the signatures of the keys, and their relative minorkeys, indicated, and by a simple mechanism the transposition of one keyinto another in an instant accomplished.

The invention consists essentially of an interior reed-cylinder and anexterior slotted casing, which latter turns on the shaft of thereed-cylinder and is provided with recesses in its heads for renderingvisible the chords and their names at one side and the signatures of thekeys at the other side of the reedcylinder. The circumference of thecasing has transverse slots and openings for the exit of the air fromthe reeds and indicating the sharps and flats. A slide plate, which isguided in a suitable manner by the exterior casing, admits the soundingof the major or its relative minor chord, according to the relativeposition of the slide-piece. v

In the accompanying drawings, Figurcl represents a perspective view ofmy improved scale and chord indicator; Fig. 2, a vertical centralsection of the same. Figs. 3 and at are detail views of thecircumferences of the reedcylinder and of the casing, shown as rolledout for greater clearness. Figs. 5 and 7 are end views, partly insection, showing the indicator from opposite sides; and Figs. 6 and Sare end views of the interior reed-cylinder with the easin g removed.

Similar letters of reference indicate corresponding parts.

In the drawings, A represents the interior reed-cylinder, which isarranged at its circumference with twelve reeds representing the soundsof the chromatic scale, said reeds he- (Xo model.)

ing preferably set into recesses of the cylinder in such a manner as tobe readily removed and replaced in case any one of the reeds shouldrequire cleaning or give out by use.

The head 0! the cylinder A is provided in line with its axis with ahandle. button, or other deviee, a, by which the cylinder may be turnedaround its axis within the inclosing casing B, while the other head isarranged with a mouth-pieee, I), through which air maybe blown in letsounding the reeds. One head of the cylinder Aisprovidedwiththevisihletrichords ot' the diii'erent keys and their scale numbers,signatures, and clefs, while the opposite head shows the signature ofany key and its keynote. At both sides of the reed-cylimler the notesand characters are arranged on circular statl's. Thesedifierentcharacters are preferably stamped in relief into the metalcovering of the reed-cylinder, or they may be engraved thereon, orprinted on paper and pasted upon the cylinder, or arranged thereoirinanyother suitable manner.

The circumference of the inclosing casing B is provided with a number ofsquare openings, (6, which are arranged in pairs and with intermediatetransverse slots 6, as shownin Figs. 1 and i, respectively. The squareopenings (I serve for reading off the entire scale, with its necessarysharps or flats, which is stamped or engraved into the circumference ofthe reedcylinder A, as shown in Fig. 3, while the transverse slots 0serve, in connection therewith, to admit the audible sounding of thechord corresponding to the key to which the indicator has been set. Theslots 0 are arranged at such distances from each other as to representthe major chord of any key, there being a fourth slot by which therelative minor chord may be sounded when a covering slide-piece, O, hasbeen properly set so as to open one and close the other of two adjoiningslots, 0, in connection with which the slide-piece O is worked. Theslide-piece U is guided in recesses of the casing B and connected byradial arms with the mouth-piece and handle of the reed-cylinder, or itis guided inside of the casing B, as 'desired, it being stopped whenarriving in the proper position in either direction.

The circumference of the outer casing, B, is

further provided along one side of the opening (I and slots 0 with thescale-number and at the othersidewith the syllables of the Italianscale, do, re, mi, fa, 82c. Theheads of the casing B are provided with asector-shaped opening, f, and a slot,f, at one side, and with twosector-shaped openings, 9 g, at the opposite side of the casing, asshown in Figs. 5 and 7. If. for instance, it is desired to know the keyof any piece of musichavingthe signature of four flats, the indicator isturned until the four flats appear through rccessf of the casing at theend of the reed-cylinder which indicates the key of A-flat, the relativeminor of which is F-minor, which will also be visible at the openingf.

The scale at the circumference of the cylinder shows the half and wholesteps and indicates which tones are flat, while all tones that do notoccur in the respective key are covered. The visible chord, appearingthrough the recess g ofthe casing both for major and minor, will bereadily sounded by properly setting the slide-piece G. In this mannerthe device is capable of convenient use for a variety of purposes,mainly, however, for self-instruction in music, as it gives thetranspositions from one key to the otherand furnishes every neededinformation as to the keys and scales quickly and easily without anytrouble.

I am aware that a chord-intonator consisting of a reed-cylinder, slottedcasing, and a mouth-piece at one end is a device well known tomusicians, and I therefore lay no claim to the same, but simply to theadditional features shown by my device.

Having thus described my invention, I claim as new and desire to secureby Letters Patent The combination, in a scale and chord indicator, of aninterior reedcylinder, arranged substantially as described, with anexterior cylindrical casing provided with transverse slots for theegress of the air, recessed heads for exposing the entire scale, andmechanism for indicating at pleasure the major and its relative minorchord, all substantially as described.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of two witnesses, this 1st day of September, 1881.

CHARLES H. HAUSOHEL.

Witnesses:

PAUL GoEPEL, CARL KARP.

